//
//  dog.h
//  222
//
//  Created by zxl02 on 2020/8/18.
//  Copyright © 2020 CordovaDemo. All rights reserved.
//

#import <Foundation/Foundation.h>
//#import "ViewController.h"
NS_ASSUME_NONNULL_BEGIN
@protocol IFly <NSObject>
@property(nonatomic,copy)NSString * str; 
- (void)fly:(NSString*)str;

@end
@interface dog : NSObject<IFly>

@end

@interface man  : NSObject<IFly>

@end
NS_ASSUME_NONNULL_END
